Tungs Dheart 2. Veins are blood vessels that carry blood towards the heart. What is the only vein that carries oxygenated blood? A subclavian veins B. pulmonary veins C. coronary veins D. vena cavas

3. What do you call the movement of blood from your heart to the different parts of the body? A circulation 8. digestion c. perspiration D. respiration

4. Which of the following practices best maintain a healthy respiratory and circulatory systems? 1 Exercise twice a year Avoid fatty substances m. Drink alcohol IV. Sleep 7 - 9 hours a day A 1, and I​